From an article on FNC:
Al Qaeda claimed a squad of four Iraqi homicide bombers, including a husband and wife team, carried out the Ammam attacks with explosive belts after carefully staking out the hotels for a month. Jordan interrogated 12 suspects Friday who may have helped them.
This is just a quick update from the 53 Dead in Amman Terrorist Attacks article.
UPDATE: FNC Reports:
Strapped with a disabled explosives belt, an Iraqi woman arrested Sunday confessed on television to trying to blow herself up with her husband in one of three homicide attacks earlier this week that killed 57 people.
The 35-year-old woman â the sister of Abu Musab al-Zarqawi’s right-hand man who was killed by U.S. forces in Iraq â appeared on Jordanian state TV hours after she was captured by security forces who were tipped off by an Al Qaeda claim that a husband-and-wife team participated in Wednesday’s bombings.
They have the video of the confession as well.